When you get a piece of spam in Outlook you move it to Junk or block the sender. And then, even if that junk mail is marked as read, the Junk folder has a BOLD MESSAGE COUNT. It's the only folder that does this. I cannot do any other work while I have a bold message count and so I have to switch to the Junk folder and delete the message to get rid of it.
Regular email: read, file, done.
Junk email: recognize as spam, click block sender, confirm that I really want to block the sender, switch to Junk folder, mark as read, delete.
Something is really wrong with this workflow. It's a lens through which you can view the ultimate demise of the company. Sure, Office isn't going away soon and Azure is growing like crazy and SQL Server runs on Linux. But somewhere in Redmond 5,000 people designed a Junk email folder that is the MOST IMPORTANT folder in Outlook. The rest were presumably too busy making Windows Update worse to stop this.
My Google experience is that I really don't get much spam. The spam that I do get is hidden from me unless I actually need to rifle through it for some reason. On the occasion I actually get legitimate junk I just flag it as such and never have to touch it or it's ilk again.